<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>044-盒模型-样式重置.html</title>
	<style>
		div{
			border: 1px solid #000;
		}
		ul{
			border: 1px solid #000;
		}
		li{
			border: 1px solid #000;
		}
	</style>
</head>
<body>
	<div>div</div>
	<ul>
		<li>li</li>
	</ul>
</div>
</body>
</html>